SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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even more cats with 12 cm long whiskers
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most cats with less than 12 cm long whiskers
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most cats with more than 12 cm long whiskers
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most cats with whiskers either less than or more than 12 cm long, very few with whiskers 12 cms
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Detailed explanation-1: -The correct answer is: Most cats will have whiskers more than 12 cm long.
Detailed explanation-2: -Stabilizing Selection When selective pressures select against the two extremes of a trait, the population experiences stabilizing selection. For example, plant height might be acted on by stabilizing selection. A plant that is too short may not be able to compete with other plants for sunlight.
Detailed explanation-3: -Disruptive selection occurs when both extreme traits are favored in an environment. Disruptive selection increases genetic and phenotypic diversity in a population, since more than one phenotype, or physical trait, is favored.
Detailed explanation-4: -Graph 1 shows directional selection, in which a single extreme phenotype is favored. Graph 2 depicts stabilizing selection, where the intermediate phenotype is favored over the extreme traits. Graph 3 shows disruptive selection, in which the extreme phenotypes are favored over the intermediate.
Detailed explanation-5: -Natural selection is any selection process that occurs as a result of an organism’s ability to adapt to its surroundings. Artificial selection, on the other hand, is selective breeding that is imposed by an external entity, usually humans, in order to enhance the frequency of desirable features.